Document Type

Technical Report

Department

Computer Science and Engineering

Publication Date

2009

Filename

wucse-2009-9.pdf

DOI:

10.7936/K7W09445

Technical Report Number

wucse-2009-9

Abstract

We consider the special case of tracking objects in highly structured scenes. In the context of vehicle tracking in urban environments, we offer a fully automatic, end-to-end system that discovers and parametrizes the lanes along which vehicles drive, then uses just these pixels to simultaneously track dozens of objects. This system includes a novel active contour energy function used to parametrize the lanes of travel based only on the accumulation of spatio-temporal image derivatives, and a tracking algorithm that exploits longer temporal constraints made possible by our compact data representation; we believe both of these may be of independent interest. We offer quantitative results comparing tracking results to ground-truthed data, including thousands of vehicles from the NGSIM Peachtree data set.

Comments

Permanent URL: http://dx.doi.org/10.7936/K7W09445

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